.right-menu {
    position: relative;
}
#showRightPush {
    position: absolute;
    bottom: 8px;
    left: -37px;
    background: #333;
    border: none;
    cursor: pointer;
    color: #fff;
    padding: 16px;
    z-index: 9999;
    border-radius: 2px;
}
#showRightPush:before {
    content: '<<';
    position: absolute;
    top: 50%;
    left: 50%;
    margin-left: -9px;
    margin-top: -7px;
    font-size: .8rem;
}
#showRightPush.showleft:before {
    content: '>>';
}
.shade-box {
    position: fixed;
    right: 0;
    left: 0;
    top: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, .618);
    z-index: 9999;
    display: none;
}
.shade-box-show {
    display: block;
}